TEXT III

Disponível em https://www.comicskingdom.com/arctic-circle/. Acesso em 13/09/2019.

Considering the dramatic environmental situation all over the planet, consider the possibility of changing a recommendation present in the text III into a stronger demand, or an obligation.

Mark the alternative that correctly presents such possible change.

TEXT II

Disponível em https://www.weeklystorybook.com/comic_strip_of_the_

daycom/ 2016/07/ art-imitates-life.html. Acesso em 13/09/2019.

Com base no texto II, assinale a alternativa correta com relação à interpretação do texto verbal e do imagético da tirinha.

TEXT I

Why the Guardian is changing the language it uses about the environment

From now, house style guide recommends terms such as 'climate crisis' and 'global heating'

Fri 17 May 2019 10.39 BST Last modified on Fri 17 May 2019 19.00 BST

The Guardian has updated its style guide to introduce terms that more accurately describe the environmental crises facing the world.

Instead of “climate change” the preferred terms are “climate emergency, crisis or breakdown” and “global heating” is favoured over “global warming”, although the original terms are not banned.

“We want to ensure that we are being scientifically precise, while also communicating clearly with readers on this very important issue,” said the editor-in-chief, Katharine Viner. “The phrase „climate change", for example, sounds rather passive and gentle when what scientists are talking about is a catastrophe for humanity.”

“Increasingly, climate scientists and organisations from the UN to the Met Office are changing their terminology, and using stronger language to describe the situation we"re in,” she said.

The United Nations secretary general, António Guterres, talked of the “climate crisis” in September, adding: “We face a direct existential threat.” The climate scientist Prof Hans Joachim Schellnhuber, a former adviser to Angela Merkel, the EU and the pope, also uses “climate crisis”.

In December, Prof Richard Betts, who leads the Met Office"s climate research, said “global heating” was a more accurate term than “global warming” to describe the changes taking place to the world"s climate. In the political world, UK MPs recently endorsed the Labour party"s declaration of a “climate emergency”.

The scale of the climate and wildlife crises has been laid bare by two landmark reports from the world"s scientists. In October, they said carbon emissions must halve by 2030 to avoid even greater risks of drought, floods, extreme heat and poverty for hundreds of millions of people. In May, global scientists said human society was in jeopardy from the accelerating annihilation of wildlife and destruction of the ecosystems that support all life on Earth.

Other terms that have been updated, including the use of “wildlife” rather than “biodiversity”, “fish populations” instead of “fish stocks” and “climate science denier” rather than “climate sceptic”. In September, the BBC accepted it gets coverage of climate change “wrong too often” and told staff: “You do not need a „denier" to balance the debate.”

Earlier in May, Greta Thunberg, the Swedish teenager who has inspired school strikes for climate around the globe, said: “It"s 2019. Can we all now call it what it is: climate breakdown, climate crisis, climate emergency, ecological breakdown, ecological crisis and ecological emergency?”

The update to the Guardian"s style guide follows the addition of the global carbon dioxide level to the Guardian"s daily weather pages. “Levels of CO₂ in the atmosphere have risen so dramatically – including a measure of that in our daily weather report is symbolic of what human activity is doing to our climate,” said Viner in April. “People need reminding that the climate crisis is no longer a future problem – we need to tackle it now, and every day matters.”

Disponível em: https://www.theguardian.com/environment/2019/may/17/why-theguardian-

is-changing-the- language-it-uses-about-the-environment Acesso em 13/09/2019.

Sobre o trecho do texto I: “It's 2019. Can we all now call it what it is...”, assinale a alternativa que indica as duas informações corretas a respeito do termo destacado.

Sabendo que !$ x_1, \, x_2, \, x_3 !$ são as raízes da equação !$ 3x^3 \, + \, 2x^2 \, + \, x \, - \, 1 \, = \, 0. !$

O valor de !$ \dfrac {1} {x_1} \, + \, \dfrac {1} {x_2} \, + \, \dfrac {1} {x_3} !$ é

Ao dividir o polinômio !$ x^6 \, + \, 3x^5 \, - \, 2x^2 \, + \, x \, + \, 2 !$ por !$ x \, - \, 1, !$ obtemos o número a como resto e um quociente de grau m com termo independente b.

O valor de m - a + b é

Uma reta r passa pelas interseções das circunferências dadas pelas equações: !$ x^2 \, + \,\, y^2 \, + \, 2x \, + \, 2y \, - \, 3 \, = \, 0 \,\,\,\, e \,\,\,\, x^2 \, + \, y^2 \, - \, x \, - \, 4y \, - \, 3 \, = \, 0. !$

Determine a equação da reta perpendicular a r que passa pelo ponto médio do segmento que liga as interseções das circunferências.

Considere uma superfície esférica tangenciando um cone por dentro, como ilustra a figura. A distância entre o centro da superfície esférica ao vértice do cone é de 6 cm e o ângulo formado pela reta geratriz do cone com seu eixo é de 30º. A distância da base da calota fora do cone ao centro da superfície esférica é 2/3 da medida do raio da superfície esférica.

O volume da calota é de

Em sua caminhada seguindo a margem de um rio, um escoteiro encontra uma sumaúma na margem oposta cuja altura é representada pelo segmento !$ \overline{AB}, !$ com base no ponto A. Com seu bastão de caminhada, que mede 1,5 metros de comprimento, o escoteiro decide calcular a altura desta sumaúma. Do lado da sua margem do rio, o escoteiro cria um segmento de reta !$ \overline{CD} !$ que mede 20 vezes o tamanho do seu bastão de caminhada de forma que este segmento seja perpendicular ao segmento !$ \overline{DA}, !$ como ilustra a figura. Usando sua bússola de forma criativa, ele obtém o ângulo !$ A\hat{C}D \, = \, 30º !$ e !$ A\hat{C}B \, = \, 60º. !$

A medida da altura da sumaúma é

Se f(x) = log₃ x e g(x) = 3^2x então, h(x) = f o g é dada por

Um quadrado de lado 1 está inscrito em uma circunferência e circunscrito a outra, conforme a figura abaixo.

Se A₁ é a área da circunferência menor e A₂ é a área da circunferência maior então, podemos afirmar que